Customers can now select hourly rental times even when the rental product's minimum duration is configured in another unit. This removes an unnecessary checkout limitation and helps customers complete bookings with the time options they need.

Before this commit, customers could not select hours if the rental minimal duration was not set in hours.

Now, the rental minimal duration does not affect the hours' widget.

Saudi Arabia payroll salary rules have been corrected and expanded to better match required payroll calculations. The update helps produce more accurate payslips for Saudi and expatriate employees, including related leave and departure handling.

Ticket ID: [3215965](https://www.odoo.com/odoo/project.task/3215965?cids=14)

Modifications to existing salary rules in KSA payroll + adding some new rules.